Hello Thenameinforum

check out my answer from this Topic:

https://support.industry.siemens.com/forum/de/en/posts/wincc-unified-control-io-field-process-value-read-and-write-by-javascript/289302/?page=0&pageSize=10

bye Murof

Hi Thenameinforum,

Have you tried the solution offered by Ricor5? That would have been my first suggestion. It would be interesting to know your results from testing this solution.

If this solution does not meet your requirements, it might help us volunteers to know more about the background of your question. To be honest, I have no idea why this approach would be necessary.

Kind regards
Stefan

Deming Zheng

Hi Thenameinforum,

I am having the same difficulties. Do you have a solution you can share?

Thanks

 Hello Deming Zheng

In WinCC Unified you do not have an input value property and also no Inputvalue chaned event like in WinCC V7/8 for example.

You can only use a script at the process Value Property for reading Tag values in teh IO field and the Event InputFinished for writing the Process value property to any Tag or doing somethign else with it.

(you will do this only if you do not want to dynamise the tag directly to the processvalue property; peerhaps for validating the input value or calculating something)

Bye Murof